Fluxim provides device simulation software and measurement hardware to the display, lighting and photovoltaics community worldwide. Our principal activity is the development and the marketing of the simulation software SETFOS and LAOSS, as well as the all-in-one characterization platform PAIOS and the angular spectrometer PHELOS. Our R&D tools are used worldwide in industrial and academic research labs for the development of devices and semiconducting materials with improved performance as well as the study of device physics, respectively. These tools allow our customers to analyze, predict and improve device performance thereby reducing R&D cost and shortening time-to-market. Leading manufacturers rely on our tools for electro-optical simulation and characterization of stunning OLED displays.


To strengthen our R&D team we look for a physicist, engineer or computational scientist that carries out a PhD project in the framework of the H2020 Innovative Training Network project TADFLife with other European industrial and academic partners.

The PhD project involves the following responsibilities:

·         Develop efficient ‘benchtop’ R&D methods and tools for the characterization of OLED materials and devices in the context of           new class of OLED emitter materials (Thermally activated delayed fluorescence, TADF)

·         Combine simulation and measurement methods for determination of material parameters

·         Development of prototype tools, testing and documentation

·         Collaborate closely with international project partners

·         Two external internships on device fabrication and photophysical measurement

·         Execute case study projects in an interactive and consultative mode with customers

·         Write scientific publications and give presentations at technical conferences


The ideal candidate has a university degree in Physics or Engineering at Master level and great interest in organic electronics, semiconductor physics or optics R&D either experimentally and by means of simulation. Prior research experience in one of our key application areas, OLEDs and emerging PV technology, as well as in numerical modeling are a plus. We look for a motivated scientist or engineer, that enjoys working in an international setting in a dynamic firm and contribute to this growing high-tech market. The candidate should be proficient in English.


We offer an exciting PhD position in a challenging working environment in the vicinity of Winterthur and Zurich, Switzerland, in a young, highly motivated team. The position is embedded in an international project consortium that the PhD candidate will interact with. Further info about the TADFLife project is provided at

For more information please visit and contact Prof. Dr. Beat Ruhstaller, phone +41 44 500 4770. Applications shall be sent to